Monday Plenary
Plenary Session
ORGANIZERS: Adrienne Campbell-Washburn, Shaoying Huang, Kathryn Keenan, Najat Salameh, Mathieu Sarracanie
Monday, 06 May 2024
Plenary Hall (Hall 603-604)
10:30 -
12:15
Moderators: Adrienne Campbell-Washburn & Shaoying Huang
Session Number: P-01
CME Credit
Session Number: P-01
Overview
Interest in low-field MRI is rising, identified as a means to overcome accessibility issues to conventional MRI, or to complement the traditional Radiology arsenal through new classes of devices with innovative markers and new imaging paradigms. Through lower cost and reduced footprint, low-field MRI may bring enhanced access to the patient, either from expanded compatibility (e.g., patients with implants, obesity, or claustrophobia) or else through better coverage of the world population, in particular in underserved areas. Inherently suffering from lower sensitivity, questioning its overall performance, academic and industrial efforts in the past decade have delivered systems that can provide good diagnostic confidence at the bedside and in Radiology settings. Moreover, covering a wide range of magnetic field regimes with evolving physics, low-field MRI also offers new opportunities by way of unique endogenous contrasts yet to be explored.
Target Audience
Clinicians, scientists and engineers, technologists, and trainees at any career stage working in MRI.
Educational Objectives
As a result of attending this course, participants should be able to:
- Explain the differences between conventional and low-field MRI system designs;
- Identify new opportunities resulting from new low-field MRI systems;
- Summarize the technologies, challenges, and benefits of smaller footprint and portable MRI; and
- Describe tissue contrasts that are different at low-field compared to conventional MRI and the opportunities these present.
| 10:30 | | ISMRM Awards: Junior Fellows, Senior Fellows & Gold MedalDerek Jones Cardiff University, Cardiff, United Kingdom |
| 11:15 |  | New Contrasts David Lurie Keywords: Physics & Engineering: Low-Field MRI, Contrast mechanisms: Relaxometry In the 1970s and early ‘80s all MRI was at low field, typically 0.15T or less; nevertheless, image contrast was high. Fischer et al. (MRM, 1990) used field-cycling relaxometry to measure NMR dispersion curves (R1 versus field strength) of brain grey and white matter over a wide range of field strengths, showing that endogenous contrast peaked around 0.2T. Dispersion curves are highly sensitive to molecular motion and changes in their shape provide new biomarkers of disease. Data obtained in vivo in patients with breast cancer will be shown, using Field-Cycling Imaging which is able to exploit R1 dispersion contrast. |
| 11:35 | | New Applications Kevin Sheth |
| 11:55 | | New Access Clarissa Cooley |